1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
|
/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "BLI_span.hh"
#include "BLI_virtual_array.hh"
#include "BKE_spline.hh"
using blender::float3;
using blender::MutableSpan;
using blender::Span;
SplinePtr PolySpline::copy() const
{
return std::make_unique<PolySpline>(*this);
}
int PolySpline::size() const
{
const int size = positions_.size();
BLI_assert(size == radii_.size());
BLI_assert(size == tilts_.size());
return size;
}
/**
* \warning Call #reallocate on the spline's attributes after adding all points.
*/
void PolySpline::add_point(const float3 position, const float radius, const float tilt)
{
positions_.append(position);
radii_.append(radius);
tilts_.append(tilt);
this->mark_cache_invalid();
}
void PolySpline::resize(const int size)
{
positions_.resize(size);
radii_.resize(size);
tilts_.resize(size);
this->mark_cache_invalid();
attributes.reallocate(size);
}
MutableSpan<float3> PolySpline::positions()
{
return positions_;
}
Span<float3> PolySpline::positions() const
{
return positions_;
}
MutableSpan<float> PolySpline::radii()
{
return radii_;
}
Span<float> PolySpline::radii() const
{
return radii_;
}
MutableSpan<float> PolySpline::tilts()
{
return tilts_;
}
Span<float> PolySpline::tilts() const
{
return tilts_;
}
void PolySpline::mark_cache_invalid()
{
tangent_cache_dirty_ = true;
normal_cache_dirty_ = true;
length_cache_dirty_ = true;
}
int PolySpline::evaluated_points_size() const
{
return this->size();
}
void PolySpline::correct_end_tangents() const
{
}
Span<float3> PolySpline::evaluated_positions() const
{
return this->positions();
}
/**
* Poly spline interpolation from control points to evaluated points is a special case, since
* the result data is the same as the input data. This function returns a GVArray that points to
* the original data. Therefore the lifetime of the returned virtual array must not be longer than
* the source data.
*/
blender::fn::GVArrayPtr PolySpline::interpolate_to_evaluated_points(
const blender::fn::GVArray &source_data) const
{
BLI_assert(source_data.size() == this->size());
return source_data.shallow_copy();
}
|
